LinkShield allows you to make your link safe and protect. It also provides security like reCaptcha and Encryption. Registered and Non-Registered user can generate unlimited links and manage from user panel. The user can also Earn Money from generating a link and sharing links to friends and on social media, there is also an admin panel to manage all things.
Demo: https://www.codester.com/items/10792/linkshield-link-protecting-php-script